Internet es un conjunto descentralizado de redes de comunicación interconectadas, que utilizan la familia de protocolos TCP/IP, garantizando que las redes físicas heterogéneas que la componen funcionen como una red lógica única, de alcance mundial. Sus orígenes se remontan a 1969, cuando se estableció la primera conexión de computadoras, conocida como ARPANET, entre tres universidades en California y una en Utah, EE. UU..

Uno de los servicios que más éxito ha tenido en Internet ha sido la World Wide Web (WWW, o "la Web"), hasta tal punto que es habitual la confusión entre ambos términos. La WWW es un conjunto de protocolos que permite, de forma sencilla, la consulta remota de archivos de hipertexto. Ésta fue un desarrollo posterior …ver más…

The services available in the global network of PCs, have made great progress thanks to new technologies of high speed transmission, such as DSL and Wireless, has managed to unite people with videoconferencing, view a satellite image (see your house from the sky ), see the world through webcams, free phone calls, or enjoy a 3D multiplayer game, a good book, PDF, or albums and movies for download.

The access to existing Internet some years ago, basic telephony, has been gradually being replaced by faster and more stable connections, including ADSL, Cable Modems, or ISDN. They have also appeared forms of access through the grid, and even satellite (usually only for download, although the possibility of double track, using the protocol DVB-RS).

Internet is also available in many public places such as libraries, hotels and cafes and even shopping malls. A new way to access without a fixed wireless networks are today present in airports, subways, universities or entire populations.

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